题目内容
【选修3-4选做题】
一列横波如图所示,波长
m,实线表示
时刻的波形图,虚线表示
s时刻的波形图.求:
(1)波速多大?
(2)若
,波速又为多大?
(3)若
,并且波速为3600m/s,则波沿哪个方向传播?
一列横波如图所示,波长



(1)波速多大?
(2)若

(3)若


解:(1)设波沿X轴正向传播时,可能传播的距离是

设波沿X轴负向传播时,可能传播的距离是

(2)设波沿X轴正向传播时,
设波沿X轴负向传播时,
(3)
所以波是沿X轴正向传播的


设波沿X轴负向传播时,可能传播的距离是


(2)设波沿X轴正向传播时,

设波沿X轴负向传播时,

(3)

所以波是沿X轴正向传播的

练习册系列答案
相关题目